CheckPrereqs.ps1
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# Checks whether all prerequisites for using this modules are met. # IMPORTANT: # Make sure this script runs properly even with Set-StrictMode -Version Latest # in effect; notably, make sure all variables accessed have been initialized. # If running on Linux and CLI `xclip` is not availble (via $PATH), # issue a warning with installation instructions. # Note: We must guard against access to potentially undefined variable $IsLinux # if the caller's scope happens to have Set-StrictMode -Version 1 or higher in effect. # We can't just use Set-StrictMode -Off, because this script is being *dot-sourced*, # which would modify the caller's environment. Note that it's safe to use the PSv3+ Ignore value # with -ErrorAction only in the -or clause, because it will only execute on Linux, where it is guaranteed to be supported. if ( -not ((Get-Variable -ErrorAction SilentlyContinue IsLinux) -and $IsLinux) <# on Windows and macOS we know that the required libraries / CLIs are present #> ` -or (Get-Command -Type Application -ErrorAction Ignore xclip) <# `xclip` is available #> ) { exit 0 } Write-Warning @' Your Linux environment is missing the `xclip` utility, which is required for the Set-ClipboardText and Get-ClipboardText cmdlets to function. PLEASE INSTALL `xclip` VIA YOUR PLATFORM'S PACKAGE MANAGER. E.g., on Debian-based distros such as Ubuntu, run: sudo apt install xclip '@ |